﻿//=================================================================================================
// Copyright 2013-2017 Dirk Lemstra <https://github.com/dlemstra/Magick.NET/>
//
// Licensed under the ImageMagick License (the "License"); you may not use this file except in
// compliance with the License. You may obtain a copy of the License at
//
//   http://www.imagemagick.org/script/license.php
//
// Unless required by applicable law or agreed to in writing, software distributed under the
// License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
// express or implied. See the License for the specific language governing permissions and
// limitations under the License.
//=================================================================================================

using System;
using System.IO;

namespace ImageMagick.Web
{
    internal sealed class FileImageData : IImageData
    {
        private readonly string _FileName;

        public FileImageData(string fileName, MagickFormatInfo formatInfo)
        {
            _FileName = fileName;
            FormatInfo = formatInfo;
        }

        public MagickFormatInfo FormatInfo { get; }

        public string ImageId => _FileName;

        public bool IsValid => !string.IsNullOrEmpty(_FileName) && File.Exists(_FileName);

        public DateTime ModifiedTimeUtc => File.GetLastWriteTimeUtc(_FileName);

        public Stream ReadImage()
        {
            return File.OpenRead(_FileName);
        }

        public MagickImage ReadImage(MagickReadSettings settings)
        {
            return new MagickImage(_FileName, settings);
        }

        public void SaveImage(string fileName)
        {
            File.Copy(_FileName, fileName);
        }
    }
}